Vue js vee validate password confirmation always false - validation

Question

I'm trying to use vee validate to verify the password using this code.
<div>
<input type="password"
placeholder="Password"
v-model="password"
v-validate="'required|min:6|max:35|confirmed'"
name="password" />
</div>
<div>
<span>{{ errors.first('password') }}</span>
</div>
<div>
<input type="password"
placeholder="Confirm password"
v-model="confirmPassword"
v-validate="'required|target:password'"
name="confirm_password" />
</div>
<div>
<span>{{ errors.first('confirm_password') }}</span>
</div>
But it always says The password confirmation does not match.
What went wrong in my code?

Answer 1

Your password input must have ref="password" - that's how vee-validate finds the target:
<input v-validate="'required'" ... ref="password"> (Thanks, Ryley).
confirmed:{target} - Input must have the same value as the target
input, specified by {target} as the target field’s name.
Also, there's an error with your Vee Validate syntax, change target: to confirmed:
v-validate="'required|target:password'"
should be
v-validate="'required|confirmed:password'"
Have a look at the basic example below, it will check for two things:
Does the second input field have any input value?
If yes, does the second input value match the first input value?
var app = new Vue({
el: '#app',
data: {
message: 'Hello Vue!'
}
})
body {
background: #20262E;
padding: 15px;
font-family: Helvetica;
}
#app {
width: 60%;
background: #fff;
border-radius: 10px;
padding: 15px;
margin: auto;
}
<script src="https://cdn.jsdelivr.net/npm/vue#2.5.17/dist/vue.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vee-validate/2.1.1/vee-validate.js"></script>
<script>
Vue.use(VeeValidate);
</script>
<div id="app">
<form id="demo">
<!-- INPUTS -->
<div class="input-group">
<h4 id="header"> Enter Password</h4>
<div class="input-fields">
<input v-validate="'required'" name="password" type="password" placeholder="Password" ref="password">
<input v-validate="'required|confirmed:password'" name="password_confirmation" type="password" placeholder="Password, Again" data-vv-as="password">
</div>
</div>
<!-- ERRORS -->
<div class="alert alert-danger" v-show="errors.any()">
<div v-if="errors.has('password')">
{{ errors.first('password') }}
</div>
<div v-if="errors.has('password_confirmation')">
{{ errors.first('password_confirmation') }}
</div>
</div>
</form>
</div>
Further reading: https://baianat.github.io/vee-validate/guide/rules.html#confirmed

Answer 2

Below code works for me: https://logaretm.github.io/vee-validate/advanced/cross-field-validation.html#targeting-other-fields
<template>
<ValidationObserver>
<ValidationProvider rules="required|password:#confirm" v-slot="{ errors }">
<input type="password" v-model="password" />
<span>{{ errors[0] }}</span>
</ValidationProvider>
<ValidationProvider name="confirm" rules="required" v-slot="{ errors }">
<input type="password" v-model="confirmation" />
<span>{{ errors[0] }}</span>
</ValidationProvider>
</ValidationObserver>
</template>
<script>
import { extend } from 'vee-validate';
extend('password', {
params: ['target'],
validate(value, { target }) {
return value === target;
},
message: 'Password confirmation does not match'
});
export default {
data: () => ({
password: '',
confirmation: ''
})
};
</script>

Answer 3

On Vee-validate 3.x.x another way of doing it is:
<template>
<ValidationObserver>
<ValidationProvider vid="password" rules="required" v-slot="{ errors }">
<input type="password" v-model="password" />
<span>{{ errors[0] }}</span>
</ValidationProvider>
<ValidationProvider name="confirm" rules="required|confirmed:password" v-slot="{ errors }">
<input type="password" v-model="confirmation" />
<span>{{ errors[0] }}</span>
</ValidationProvider>
</ValidationObserver>
</template>
<script>
import { extend } from 'vee-validate';
extend("confirmed", {
...confirmed,
message: "The password does not match",
});
export default {
data: () => ({
password: '',
confirmation: ''
})
};
</script>
Something import to notice is the vid prop on the first validation provider. It will NOT work without it.